the bait is drawing the roaches in hiding out into the open. There is a saying that there are 1,000 roaches hiding for every roach you see. Baits are never 100% effective. Sprays are 100% effective if applied right.
It normally takes only two visits to get rid of roaches. The initial treatment to kill all the roaches in the house at that time and two weeks later a second treatment to kill all the roaches that hatched from the eggs in the house after the first treatment. |